/*
 * Atomic Predicates for Transformers
 * 
 * Copyright (c) 2015 UNIVERSITY OF TEXAS AUSTIN. All rights reserved. Developed
 * by: HONGKUN YANG and SIMON S. LAM http://www.cs.utexas.edu/users/lam/NRL/
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * with the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimers.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimers in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. Neither the name of the UNIVERSITY OF TEXAS AUSTIN nor the names of the
 * developers may be used to endorse or promote products derived from this
 * Software without specific prior written permission.
 * 
 * 4. Any report or paper describing results derived from using any part of this
 * Software must cite the following publication of the developers: Hongkun Yang
 * and Simon S. Lam, Scalable Verification of Networks With Packet Transformers
 * Using Atomic Predicates, IEEE/ACM Transactions on Networking, October 2017,
 * Volume 25, No. 5, pages 2900-2915 (first published as IEEE Early Access
 * Article, July 2017, Digital Object Identifier: 10.1109/TNET.2017.2720172).
 * 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH
 * THE SOFTWARE.
 */
package transformer;

import java.io.IOException;
import java.util.*;

import common.PositionTuple;

public class NetworkCOVEMPLS extends NetworkCOVE{

    /**
     * 
     */
    private static final long serialVersionUID = -1428557437305328786L;

    public NetworkCOVEMPLS(String foldername, String edge_routers_file, String root_as) throws IOException {
        super(foldername, edge_routers_file);
        this.root_as = root_as;
    }
    
    ArrayList<String[]> mpls_paths;
    String root_as;
    
    public void read_tunnels_from_file(String tunnel_file_name)
    {
        mpls_paths = NetworkCOVEMPLSAP.get_tunnels(tunnel_file_name);

    }
    
    public void add_mpls_paths(int tunnel_num)
    {

        int used_tunnel_num = tunnel_num;

        if(used_tunnel_num > mpls_paths.size())
        {
            used_tunnel_num = mpls_paths.size();
        }

        ini_mpls();
        for(int i = 0; i < used_tunnel_num; i ++)
        {
            String[] tunnel = mpls_paths.get(i);
            add_mpls_path(tunnel);
        }
        
        convert_mpls_bdd();
    }
    
    public double compute_trees()
    {
        HashSet<PositionTuple> pts = getallactiveports();
        HashSet<PositionTuple> used_pt = new HashSet<PositionTuple> ();

        for(PositionTuple pt : pts)
        {
            if(pt.getPortName().equals(root_as))
            {
                used_pt.add(pt);
                System.out.println(pt + " selected");
                break;
            }
        }
        
        return StateTransferI2Run.compute_trees_anynonmplspkt(this, used_pt, null);
    }
    
    
    

}
